Thanks, it was the goal at the origin, but I find that it was really hard to lead the flock during the attack so I remove the enclosure. I will probably continue the game after the gamejam, add a sheppard who lead the flock that you can call at some point, but for the moment without refactoring I cannot had more steering behaviors or state ^.^ I'll see if I have time to add some kind of victory condition before midnight.
But I think that my sheep have more chances to survive than the little mushroom in your game :P The death toll seems to worry you only when you are the prey :) . I apologize for SFX and graphics they are really awfull ! I spent all my time on AI with placeholder and realize yesterday afternoun that I need graphics and sounds :D